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Errors & debugging

Handle failures gracefully, raise helpful errors, and debug with confidence.

1 match
Errors & debugging easy

How to Mock a Failing Dependency to Test Error Paths in Python

Inject a fake HTTP client that raises a connection error to test how code handles dependency failures without touching the network.

testing mocking requests
Python 
import requests

def fetch_user(user_id):
    url = f"https://api.example.com/users/{user_id}"
    response = requests.get(url, timeout=5)
    response.raise_for_status()
    return response.json()

def get_user_name(user_id, http_client):
    try:
        user_data = http_client(user_id)
        return user_data["nam…
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